package com.ruoyi.common.core.domain;

import java.io.Serializable;

import com.ruoyi.common.core.constant.Constants;

/**
 * 响应信息主体
 * @author ruoyi
 */
public class R<T> implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * 成功
     */
    public static final int SUCCESS = Constants.SUCCESS;

    /**
     * 失败
     */
    public static final int FAIL = Constants.FAIL;

    private int code;

    private String msg;

    private T data;

    public static <T> R<T> ok () {
        return restResult ( null, SUCCESS, null );
    }

    public static <T> R<T> ok (T data) {
        return restResult ( data, SUCCESS, null );
    }

    public static <T> R<T> ok (T data, String msg) {
        return restResult ( data, SUCCESS, msg );
    }

    public static <T> R<T> fail () {
        return restResult ( null, FAIL, null );
    }

    public static <T> R<T> fail (String msg) {
        return restResult ( null, FAIL, msg );
    }

    public static <T> R<T> fail (T data) {
        return restResult ( data, FAIL, null );
    }

    public static <T> R<T> fail (T data, String msg) {
        return restResult ( data, FAIL, msg );
    }

    public static <T> R<T> fail (int code, String msg) {
        return restResult ( null, code, msg );
    }

    private static <T> R<T> restResult (T data, int code, String msg) {
        R<T> apiResult = new R<> ();
        apiResult.setCode ( code );
        apiResult.setData ( data );
        apiResult.setMsg ( msg );
        return apiResult;
    }

    public int getCode () {
        return code;
    }

    public void setCode (int code) {
        this.code = code;
    }

    public String getMsg () {
        return msg;
    }

    public void setMsg (String msg) {
        this.msg = msg;
    }

    public T getData () {
        return data;
    }

    public void setData (T data) {
        this.data = data;
    }

    public static <T> Boolean isError (R<T> ret) {
        return ! isSuccess ( ret );
    }

    public static <T> Boolean isSuccess (R<T> ret) {
        return R.SUCCESS == ret.getCode ();
    }
}
